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Authors |
Year |
Title |
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Closs & Kullmann |
1975 |
Late Paleozoic cephalopods from South America.
Anales Acad. brasil. Cienc., (1972) 44 (Supplemento): 95-98, Rio de Janeiro.
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Kullmann |
1993 |
Paleozoic ammonoids of Mexico and South America.
Comptes Rendus XII ICC-P, Vol.1: 557-562, fig.1-2; Buenos Aires.
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Murray, Furnish & Carillo |
1960 |
Carboniferous goniatites from Caballeros Canyon, State of Tamaulipas, Mexico.
Journal of Paleontology 34: 731-737, 5 text-figs., Tulsa, OK.
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Thomas |
1928 |
An Upper Carboniferous Fauna from the Amotape Mountains, North-Western Peru.
Geological Magazine 65: 146-152, 215-234, 289-301, pls.5-6, 1928; 67: 394-408, pl.24, 1930.
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